Hatch construction



Nov. 23, 1937.

c. D. BoNsA l HATCH CONSTRUCTION Filed Dec. 4, 1935 2 Sheets-Sheet l Nov. 23, 1937. c. D. BoNsALL 2,100,121

HATCH CONSTRUCTION- Filed Dec. 4, 1935 2 Sheets-Sheet 2- f/Ls ATTO/@Nini Patented Nov. 23, 1937 UNITED STATES PATENT OFFICE HATCH CONSTRUCTION Charles David: Bonsall, Pittsburgh, Pa., assigner toP. H. Murphy Company, New Kensington,

Fa., a corporation of Pennsylvania 1 Appueauen December 4, 1935, serial Nn. 52,759

` s claims. 4(ci. 10s- 5.4)

This invention relates to thehatch construction of a metal car roof. It has for its principal objects to produce a strong, durable, simple and economical hatch construction; The invention 5v consists in the'hatch construction and in the combinations and arrangements of parts hereinafter described and claimed.

In the accompanying drawings, which form partr of this specification and wherein likeA l symbols refer to like parts wherever they occur, Fig. 1 is a plan view of the end portion of a metal car roof provided on each side of the ridge with a hatch construction embodying my invention,

l Fig. 2 is an enlarged vertical section through one of said hatches, the section being taken transversely of the roof on the line 2-2 of Fig. 1,

Fig. 3 is a vertical section through said hatch- Way, the section being taken longitudinally of the roof on the line 3 3 of Fig. 1,

Fig. 4 is a fragmentary vertical section through one side of a modified form of hatch construction,

Fig. 5 is a fragmentary plan view of a metal car roof, showing another modified form of hatch construction,

Fig. 6 is a vertical transverse section on the line 6-6 of Fig. 5, Fig. 7 is a vertical longitudinal section on the line 'I-l of Fig. 5; andk Fig. 8 is a view similar to Fig. 4 illustrating another modified form of hatch construction.

Referring to the accompanying drawings, my

invention is shown in connection with a refrigerator car roof comprising end and intermediate metal'roof sheets I and Ia, respectively, that extend from side plate 2 to side plate 2 of the car and have their ends rigidly secured to the sloping top flanges of eaves angle strips 3 Whose vertical flanges are secured to the outer faces of said side plates and cover the upper ends of the side sheathing 4. 'I'he roof sheets are provided along their adjacent margins with upstanding flanges 5 that are straddled by seam caps 6 that are riveted to said flanges and to the top flanges of the eaves angle strips 3. The roof sheets have depending eaves flanges l that overhang the side fascia boards 8 that are secured to the side sheathing 4 ush with the tops of the side plates 2. At the end of the car the end roof sheet I is secured to the outstanding upper flange of the end angle strip 9 whose vertical flange is secured to the outer face of the end plate II) of the car and covers the upper end of the end sheathing gether byvertical bolts Ilia.

II. The end fascia board I2 is secured to the outer face of the end sheathing I I; and the outer margin of the end roof sheet I has a depending flange I3 that overhangs said end fascia board. The side plates are connected by carlines I4; and .5 the roof is insulated by suitable massed insulation I5 located between said carlines andthe roof sheets and by a suitable insulating lining I5a that is suspended from said carlines.

The roof is provided adjacent to the end of the 10 car with one or two hatches for admitting ice and salt to the interior of said car. In the construction illustrated in Figs. 1, `2`and 3, each hatch is defined by a round-cornered wooden frame I6 supported between and extending above 16 adjacent carlines I4 and provided above said carlines with a beveled upper outside corner I'I. This wooden hatch frame is preferably made of upper and lower sections that are secured to- I'he end roof sheet 20 Ia has a round-cornered hatch opening adapted to receive the upwardly extending portion of the round-cornered wooden hatch frame I6 of said hatch opening and an upstanding fiange I8 along the margin of said opening that surrounds but 25 is spaced slightly from said wooden hatch frame and terminates below the beveled upper outside corner thereof.

In the construction illustrated in Figs. 1, 2 and 3, there is a round-cornered, pressed-metal 30 frame or liner I9 that fits within the wooden hatch frame I6 and has a hopper-shapedlower portion below the main surface of the roof that constitutes a seat for a tapered hatch plug (not shown). The upper end of the metal hatch 35 frame I9 is pressed to form an outstanding flange 20 kthat rests upon the top ofthe wooden hatch frame I6, slopes downwardly and outwardly to conform to the beveled upper outside corner I'I of said wooden hatch frame and terminates 40 therebeyond in a depending flange portion 2l that overhangs and is riveted or otherwise rigidly secured flatwise to the outer face of the upstanding flange I8 around the margin of the hatch opening in the hatch sheet Ia. In the modified 45 hatch construction shown in Fig. 4, the inclined portion of the top flange 20a of the metal hatch frame I9a is continued beyond the outer side of the wooden hatch frame to form a downwardly and outwardly sloping fiange portion 2Ia that 50 overlaps and is riveted or votherwise rigidly secured to a flange I 8a that extends around the margin of the opening in the hatch sheet at an angle corresponding to the angle of the flange portion of said metal 'hatch frame. 55

In the modified hatch construction shown in Figs. 5, 6 and 7, the wooden hatch ls located entirely below the hatch sheet and constitutes a support therefor; and the metal hatch frame is a square-cornered frame made up of side members connected at the corners of said frame by Welded miter joints 22. This metal hatch frame lsb fits within the hatch opening in the hatch sheet and is secured to the upstanding flange Ib along the margin of said opening by a weld 23 of added metal extending continuously along the upper edge of said flange. The metal hatch frame l9b is provided above said flange with an outstanding top flange Zbadapted to serve as a support for a hatch cover (not shown). The modified construction shown-in Fig. 8 is similar to the modified construction just described, except that it omits the upstanding flange around the margin of the opening in the hatch sheet and is provided with a weld 2l of added metal that secures said'sheet to the metal hatch frame along the margin of said opening.

I'he hatchway construction hereinbefore described has several advantages. The metal hatch frame serves to enclose and protect the portion of the wooden hatch frame located above the general roof level; and serves as a liner or wear member for the inner surface of said wooden hatch frame and provides a tapered seat for the hatch plug. It also provides a seat for the hatch cover and stiiens the flange around the opening in the hatch sheet. The connection between the metal hatch frame and the hatch sheet prevents leakage into the place occupied by the insulating material and permits said frame and sheet to be applied to the roof as a unit.

What I claim is:

1. A hatch construction for car roofs comprising a hatch sheet provided with a hatch opening having an upstanding flange along the margin f thereof and a metal hatch frame having a portion located in said opening and a portion extending above said flange and provided at its upper end with a marginal flange that is rigidly secured flatwise to the flange of said hatch sheet, the flange of said metal hatch frame being inclined downwardly and outwardly therefrom and the hatch sheet flange being inclined upwardly and inwardly at a corresponding angle from the margin of said opening.

2. Av hatch construction for car roofs comprising a, hatch sheet provided with a hatch opening having an upstanding flange along the margin thereof and a metal hatch frame having a portion located in said opening and spaced from said flange and a portion extending above said flange and provided at its upper end with an outstanding flange having a depending marginal portion located opposite and rigidly secured atwise to the outer face of the flange of said hatch sheet, the marginal portion of said hatch frame flange sloping downwardly and outwardly therefrom and the hatch sheet flange being disposed at a corresponding angle.

3. A hatch construction for car roofs comprising a metal hatch sheet provided with a hatch opening having an upstanding flange along the margin thereof, a, wooden hatch frame having a portion extending upwardly through said opening above the flange along the margin thereof, and a metal hatch frame having a portion fitting within said wooden hatch frame and extending below said roof, a portion covering the top of the wooden hatch frame and a portion extending downwardly outside of said wooden hatch frame that overlaps and is rigidly secured to the outer face of the upstanding roof sheet flange, the roof sheet flange engaging portion of said metal hatch frame being inclined downwardly and outwardly therefrom and the roof sheet flange being disposed at a corresponding angle.

4. In a refrigerator car roof structure, a car roof having a hatch opening therein, a hatch frame positioned within said opening and formed with a combing -extending above the roof sheet, said combing being formed with an inclined wall, a metal roof sheet for said car having upwardly inclined portions tting the inclined wall of said combing, and means for securing said combing and roof sheet together to form a watertight joint therewith.

5. In a refrigerator car construction, a metal roof sheet, a ceiling spaced therefrom, an opening in said ceiling and roof sheet, frame members interposed between said roof sheet and ceiling and adjacent said opening, a hatch frame positioned in said opening and provided with a combing overlying a portion of the roof surrounding the opening therein and means wholly above the general plane of the roof sheet for uniting said hatch frame to said roof sheet to provide an imperforate waterproof joint therebetween.

6. In a refrigerator car roof structure, a car roof having a hatch opening therein, a hatch frame positioned within said opening and formed with a combing extending above the roof sheet, said combing being formed with an inclined wall, a metal roof sheet for said car having upwardly inclined portions fitting the inclined wall of said combing, and a riveted connection passing through the inclined surfaces of said combing and roof sheet to provide a watertight connection therebetween.

7. A self-contained metal hatch frame for refrigerator cars and the like having a metal roof sheet, said frame having a combing extending above said roof sheet and provided with a downwardly and outwardly sloping rim, the roof sheet being provided with upwardly inclined walls fitting the sloping rim of the hatch frame combing, and means wholly above the general plane of the roof sheet for uniting the combing and roof sheet together to form a watertight joint.

8. A hatch construction for car roofs comprislng an uncovered metal sheet provided with a hatch opening having a flange along the margin thereof, a wooden hatch frame communicating with said opening, and a metal hatch frame having a portion fitting Within said wooden hatch frame and a portion covering the upper portion of said wooden hatch frame and means exposed to the weather and entirely separate from said wooden hatch frame for rigidly and positively connecting said last mentioned portion of said metal hatch frame to the flange surrounding the opening in said hatch sheet.

CHARLES DAVID BONSALL.

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